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lib/python3.11/site-packages/pandas/tests/tseries/holiday/__init__.py Normal file
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from datetime import datetime
import pytest
from pandas import (
DatetimeIndex,
offsets,
to_datetime,
)
import pandas._testing as tm
from pandas.tseries.holiday import (
AbstractHolidayCalendar,
Holiday,
Timestamp,
USFederalHolidayCalendar,
USLaborDay,
USThanksgivingDay,
get_calendar,
)
@pytest.mark.parametrize(
"transform", [lambda x: x, lambda x: x.strftime("%Y-%m-%d"), lambda x: Timestamp(x)]
)
def test_calendar(transform):
start_date = datetime(2012, 1, 1)
end_date = datetime(2012, 12, 31)
calendar = USFederalHolidayCalendar()
holidays = calendar.holidays(transform(start_date), transform(end_date))
expected = [
datetime(2012, 1, 2),
datetime(2012, 1, 16),
datetime(2012, 2, 20),
datetime(2012, 5, 28),
datetime(2012, 7, 4),
datetime(2012, 9, 3),
datetime(2012, 10, 8),
datetime(2012, 11, 12),
datetime(2012, 11, 22),
datetime(2012, 12, 25),
]
assert list(holidays.to_pydatetime()) == expected
def test_calendar_caching():
# see gh-9552.
class TestCalendar(AbstractHolidayCalendar):
def __init__(self, name=None, rules=None) -> None:
super().__init__(name=name, rules=rules)
jan1 = TestCalendar(rules=[Holiday("jan1", year=2015, month=1, day=1)])
jan2 = TestCalendar(rules=[Holiday("jan2", year=2015, month=1, day=2)])
# Getting holidays for Jan 1 should not alter results for Jan 2.
expected = DatetimeIndex(["01-Jan-2015"]).as_unit("ns")
tm.assert_index_equal(jan1.holidays(), expected)
expected2 = DatetimeIndex(["02-Jan-2015"]).as_unit("ns")
tm.assert_index_equal(jan2.holidays(), expected2)
def test_calendar_observance_dates():
# see gh-11477
us_fed_cal = get_calendar("USFederalHolidayCalendar")
holidays0 = us_fed_cal.holidays(
datetime(2015, 7, 3), datetime(2015, 7, 3)
) # <-- same start and end dates
holidays1 = us_fed_cal.holidays(
datetime(2015, 7, 3), datetime(2015, 7, 6)
) # <-- different start and end dates
holidays2 = us_fed_cal.holidays(
datetime(2015, 7, 3), datetime(2015, 7, 3)
) # <-- same start and end dates
# These should all produce the same result.
#
# In addition, calling with different start and end
# dates should not alter the output if we call the
# function again with the same start and end date.
tm.assert_index_equal(holidays0, holidays1)
tm.assert_index_equal(holidays0, holidays2)
def test_rule_from_name():
us_fed_cal = get_calendar("USFederalHolidayCalendar")
assert us_fed_cal.rule_from_name("Thanksgiving Day") == USThanksgivingDay
def test_calendar_2031():
# See gh-27790
#
# Labor Day 2031 is on September 1. Saturday before is August 30.
# Next working day after August 30 ought to be Tuesday, September 2.
class testCalendar(AbstractHolidayCalendar):
rules = [USLaborDay]
cal = testCalendar()
workDay = offsets.CustomBusinessDay(calendar=cal)
Sat_before_Labor_Day_2031 = to_datetime("2031-08-30")
next_working_day = Sat_before_Labor_Day_2031 + 0 * workDay
assert next_working_day == to_datetime("2031-09-02")
def test_no_holidays_calendar():
# Test for issue #31415
class NoHolidaysCalendar(AbstractHolidayCalendar):
pass
cal = NoHolidaysCalendar()
holidays = cal.holidays(Timestamp("01-Jan-2020"), Timestamp("01-Jan-2021"))
empty_index = DatetimeIndex([]) # Type is DatetimeIndex since return_name=False
tm.assert_index_equal(holidays, empty_index)

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lib/python3.11/site-packages/pandas/tests/tseries/holiday/test_federal.py Normal file
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from datetime import datetime
from pandas import DatetimeIndex
import pandas._testing as tm
from pandas.tseries.holiday import (
AbstractHolidayCalendar,
USFederalHolidayCalendar,
USMartinLutherKingJr,
USMemorialDay,
)
def test_no_mlk_before_1986():
# see gh-10278
class MLKCalendar(AbstractHolidayCalendar):
rules = [USMartinLutherKingJr]
holidays = MLKCalendar().holidays(start="1984", end="1988").to_pydatetime().tolist()
# Testing to make sure holiday is not incorrectly observed before 1986.
assert holidays == [datetime(1986, 1, 20, 0, 0), datetime(1987, 1, 19, 0, 0)]
def test_memorial_day():
class MemorialDay(AbstractHolidayCalendar):
rules = [USMemorialDay]
holidays = MemorialDay().holidays(start="1971", end="1980").to_pydatetime().tolist()
# Fixes 5/31 error and checked manually against Wikipedia.
assert holidays == [
datetime(1971, 5, 31, 0, 0),
datetime(1972, 5, 29, 0, 0),
datetime(1973, 5, 28, 0, 0),
datetime(1974, 5, 27, 0, 0),
datetime(1975, 5, 26, 0, 0),
datetime(1976, 5, 31, 0, 0),
datetime(1977, 5, 30, 0, 0),
datetime(1978, 5, 29, 0, 0),
datetime(1979, 5, 28, 0, 0),
]
def test_federal_holiday_inconsistent_returntype():
# GH 49075 test case
# Instantiate two calendars to rule out _cache
cal1 = USFederalHolidayCalendar()
cal2 = USFederalHolidayCalendar()
results_2018 = cal1.holidays(start=datetime(2018, 8, 1), end=datetime(2018, 8, 31))
results_2019 = cal2.holidays(start=datetime(2019, 8, 1), end=datetime(2019, 8, 31))
expected_results = DatetimeIndex([], dtype="datetime64[ns]", freq=None)
# Check against expected results to ensure both date
# ranges generate expected results as per GH49075 submission
tm.assert_index_equal(results_2018, expected_results)
tm.assert_index_equal(results_2019, expected_results)

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lib/python3.11/site-packages/pandas/tests/tseries/holiday/test_holiday.py Normal file
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from datetime import datetime
import pytest
from pytz import utc
from pandas import (
DatetimeIndex,
Series,
)
import pandas._testing as tm
from pandas.tseries.holiday import (
MO,
SA,
AbstractHolidayCalendar,
DateOffset,
EasterMonday,
GoodFriday,
Holiday,
HolidayCalendarFactory,
Timestamp,
USColumbusDay,
USFederalHolidayCalendar,
USLaborDay,
USMartinLutherKingJr,
USMemorialDay,
USPresidentsDay,
USThanksgivingDay,
get_calendar,
next_monday,
)
@pytest.mark.parametrize(
"holiday,start_date,end_date,expected",
[
(
USMemorialDay,
datetime(2011, 1, 1),
datetime(2020, 12, 31),
[
datetime(2011, 5, 30),
datetime(2012, 5, 28),
datetime(2013, 5, 27),
datetime(2014, 5, 26),
datetime(2015, 5, 25),
datetime(2016, 5, 30),
datetime(2017, 5, 29),
datetime(2018, 5, 28),
datetime(2019, 5, 27),
datetime(2020, 5, 25),
],
),
(
Holiday("July 4th Eve", month=7, day=3),
"2001-01-01",
"2003-03-03",
[Timestamp("2001-07-03 00:00:00"), Timestamp("2002-07-03 00:00:00")],
),
(
Holiday("July 4th Eve", month=7, day=3, days_of_week=(0, 1, 2, 3)),
"2001-01-01",
"2008-03-03",
[
Timestamp("2001-07-03 00:00:00"),
Timestamp("2002-07-03 00:00:00"),
Timestamp("2003-07-03 00:00:00"),
Timestamp("2006-07-03 00:00:00"),
Timestamp("2007-07-03 00:00:00"),
],
),
(
EasterMonday,
datetime(2011, 1, 1),
datetime(2020, 12, 31),
[
Timestamp("2011-04-25 00:00:00"),
Timestamp("2012-04-09 00:00:00"),
Timestamp("2013-04-01 00:00:00"),
Timestamp("2014-04-21 00:00:00"),
Timestamp("2015-04-06 00:00:00"),
Timestamp("2016-03-28 00:00:00"),
Timestamp("2017-04-17 00:00:00"),
Timestamp("2018-04-02 00:00:00"),
Timestamp("2019-04-22 00:00:00"),
Timestamp("2020-04-13 00:00:00"),
],
),
(
GoodFriday,
datetime(2011, 1, 1),
datetime(2020, 12, 31),
[
Timestamp("2011-04-22 00:00:00"),
Timestamp("2012-04-06 00:00:00"),
Timestamp("2013-03-29 00:00:00"),
Timestamp("2014-04-18 00:00:00"),
Timestamp("2015-04-03 00:00:00"),
Timestamp("2016-03-25 00:00:00"),
Timestamp("2017-04-14 00:00:00"),
Timestamp("2018-03-30 00:00:00"),
Timestamp("2019-04-19 00:00:00"),
Timestamp("2020-04-10 00:00:00"),
],
),
(
USThanksgivingDay,
datetime(2011, 1, 1),
datetime(2020, 12, 31),
[
datetime(2011, 11, 24),
datetime(2012, 11, 22),
datetime(2013, 11, 28),
datetime(2014, 11, 27),
datetime(2015, 11, 26),
datetime(2016, 11, 24),
datetime(2017, 11, 23),
datetime(2018, 11, 22),
datetime(2019, 11, 28),
datetime(2020, 11, 26),
],
),
],
)
def test_holiday_dates(holiday, start_date, end_date, expected):
assert list(holiday.dates(start_date, end_date)) == expected
# Verify that timezone info is preserved.
assert list(
holiday.dates(
utc.localize(Timestamp(start_date)), utc.localize(Timestamp(end_date))
)
) == [utc.localize(dt) for dt in expected]
@pytest.mark.parametrize(
"holiday,start,expected",
[
(USMemorialDay, datetime(2015, 7, 1), []),
(USMemorialDay, "2015-05-25", [Timestamp("2015-05-25")]),
(USLaborDay, datetime(2015, 7, 1), []),
(USLaborDay, "2015-09-07", [Timestamp("2015-09-07")]),
(USColumbusDay, datetime(2015, 7, 1), []),
(USColumbusDay, "2015-10-12", [Timestamp("2015-10-12")]),
(USThanksgivingDay, datetime(2015, 7, 1), []),
(USThanksgivingDay, "2015-11-26", [Timestamp("2015-11-26")]),
(USMartinLutherKingJr, datetime(2015, 7, 1), []),
(USMartinLutherKingJr, "2015-01-19", [Timestamp("2015-01-19")]),
(USPresidentsDay, datetime(2015, 7, 1), []),
(USPresidentsDay, "2015-02-16", [Timestamp("2015-02-16")]),
(GoodFriday, datetime(2015, 7, 1), []),
(GoodFriday, "2015-04-03", [Timestamp("2015-04-03")]),
(EasterMonday, "2015-04-06", [Timestamp("2015-04-06")]),
(EasterMonday, datetime(2015, 7, 1), []),
(EasterMonday, "2015-04-05", []),
("New Year's Day", "2015-01-01", [Timestamp("2015-01-01")]),
("New Year's Day", "2010-12-31", [Timestamp("2010-12-31")]),
("New Year's Day", datetime(2015, 7, 1), []),
("New Year's Day", "2011-01-01", []),
("Independence Day", "2015-07-03", [Timestamp("2015-07-03")]),
("Independence Day", datetime(2015, 7, 1), []),
("Independence Day", "2015-07-04", []),
("Veterans Day", "2012-11-12", [Timestamp("2012-11-12")]),
("Veterans Day", datetime(2015, 7, 1), []),
("Veterans Day", "2012-11-11", []),
("Christmas Day", "2011-12-26", [Timestamp("2011-12-26")]),
("Christmas Day", datetime(2015, 7, 1), []),
("Christmas Day", "2011-12-25", []),
("Juneteenth National Independence Day", "2020-06-19", []),
(
"Juneteenth National Independence Day",
"2021-06-18",
[Timestamp("2021-06-18")],
),
("Juneteenth National Independence Day", "2022-06-19", []),
(
"Juneteenth National Independence Day",
"2022-06-20",
[Timestamp("2022-06-20")],
),
],
)
def test_holidays_within_dates(holiday, start, expected):
# see gh-11477
#
# Fix holiday behavior where holiday.dates returned dates outside
# start/end date, or observed rules could not be applied because the
# holiday was not in the original date range (e.g., 7/4/2015 -> 7/3/2015).
if isinstance(holiday, str):
calendar = get_calendar("USFederalHolidayCalendar")
holiday = calendar.rule_from_name(holiday)
assert list(holiday.dates(start, start)) == expected
# Verify that timezone info is preserved.
assert list(
holiday.dates(utc.localize(Timestamp(start)), utc.localize(Timestamp(start)))
) == [utc.localize(dt) for dt in expected]
@pytest.mark.parametrize(
"transform", [lambda x: x.strftime("%Y-%m-%d"), lambda x: Timestamp(x)]
)
def test_argument_types(transform):
start_date = datetime(2011, 1, 1)
end_date = datetime(2020, 12, 31)
holidays = USThanksgivingDay.dates(start_date, end_date)
holidays2 = USThanksgivingDay.dates(transform(start_date), transform(end_date))
tm.assert_index_equal(holidays, holidays2)
@pytest.mark.parametrize(
"name,kwargs",
[
("One-Time", {"year": 2012, "month": 5, "day": 28}),
(
"Range",
{
"month": 5,
"day": 28,
"start_date": datetime(2012, 1, 1),
"end_date": datetime(2012, 12, 31),
"offset": DateOffset(weekday=MO(1)),
},
),
],
)
def test_special_holidays(name, kwargs):
base_date = [datetime(2012, 5, 28)]
holiday = Holiday(name, **kwargs)
start_date = datetime(2011, 1, 1)
end_date = datetime(2020, 12, 31)
assert base_date == holiday.dates(start_date, end_date)
def test_get_calendar():
class TestCalendar(AbstractHolidayCalendar):
rules = []
calendar = get_calendar("TestCalendar")
assert TestCalendar == type(calendar)
def test_factory():
class_1 = HolidayCalendarFactory(
"MemorialDay", AbstractHolidayCalendar, USMemorialDay
)
class_2 = HolidayCalendarFactory(
"Thanksgiving", AbstractHolidayCalendar, USThanksgivingDay
)
class_3 = HolidayCalendarFactory("Combined", class_1, class_2)
assert len(class_1.rules) == 1
assert len(class_2.rules) == 1
assert len(class_3.rules) == 2
def test_both_offset_observance_raises():
# see gh-10217
msg = "Cannot use both offset and observance"
with pytest.raises(NotImplementedError, match=msg):
Holiday(
"Cyber Monday",
month=11,
day=1,
offset=[DateOffset(weekday=SA(4))],
observance=next_monday,
)
def test_half_open_interval_with_observance():
# Prompted by GH 49075
# Check for holidays that have a half-open date interval where
# they have either a start_date or end_date defined along
# with a defined observance pattern to make sure that the return type
# for Holiday.dates() remains consistent before & after the year that
# marks the 'edge' of the half-open date interval.
holiday_1 = Holiday(
"Arbitrary Holiday - start 2022-03-14",
start_date=datetime(2022, 3, 14),
month=3,
day=14,
observance=next_monday,
)
holiday_2 = Holiday(
"Arbitrary Holiday 2 - end 2022-03-20",
end_date=datetime(2022, 3, 20),
month=3,
day=20,
observance=next_monday,
)
class TestHolidayCalendar(AbstractHolidayCalendar):
rules = [
USMartinLutherKingJr,
holiday_1,
holiday_2,
USLaborDay,
]
start = Timestamp("2022-08-01")
end = Timestamp("2022-08-31")
year_offset = DateOffset(years=5)
expected_results = DatetimeIndex([], dtype="datetime64[ns]", freq=None)
test_cal = TestHolidayCalendar()
date_interval_low = test_cal.holidays(start - year_offset, end - year_offset)
date_window_edge = test_cal.holidays(start, end)
date_interval_high = test_cal.holidays(start + year_offset, end + year_offset)
tm.assert_index_equal(date_interval_low, expected_results)
tm.assert_index_equal(date_window_edge, expected_results)
tm.assert_index_equal(date_interval_high, expected_results)
def test_holidays_with_timezone_specified_but_no_occurences():
# GH 54580
# _apply_rule() in holiday.py was silently dropping timezones if you passed it
# an empty list of holiday dates that had timezone information
start_date = Timestamp("2018-01-01", tz="America/Chicago")
end_date = Timestamp("2018-01-11", tz="America/Chicago")
test_case = USFederalHolidayCalendar().holidays(
start_date, end_date, return_name=True
)
expected_results = Series("New Year's Day", index=[start_date])
expected_results.index = expected_results.index.as_unit("ns")
tm.assert_equal(test_case, expected_results)

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lib/python3.11/site-packages/pandas/tests/tseries/holiday/test_observance.py Normal file
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from datetime import datetime
import pytest
from pandas.tseries.holiday import (
after_nearest_workday,
before_nearest_workday,
nearest_workday,
next_monday,
next_monday_or_tuesday,
next_workday,
previous_friday,
previous_workday,
sunday_to_monday,
weekend_to_monday,
)
_WEDNESDAY = datetime(2014, 4, 9)
_THURSDAY = datetime(2014, 4, 10)
_FRIDAY = datetime(2014, 4, 11)
_SATURDAY = datetime(2014, 4, 12)
_SUNDAY = datetime(2014, 4, 13)
_MONDAY = datetime(2014, 4, 14)
_TUESDAY = datetime(2014, 4, 15)
_NEXT_WEDNESDAY = datetime(2014, 4, 16)
@pytest.mark.parametrize("day", [_SATURDAY, _SUNDAY])
def test_next_monday(day):
assert next_monday(day) == _MONDAY
@pytest.mark.parametrize(
"day,expected", [(_SATURDAY, _MONDAY), (_SUNDAY, _TUESDAY), (_MONDAY, _TUESDAY)]
)
def test_next_monday_or_tuesday(day, expected):
assert next_monday_or_tuesday(day) == expected
@pytest.mark.parametrize("day", [_SATURDAY, _SUNDAY])
def test_previous_friday(day):
assert previous_friday(day) == _FRIDAY
def test_sunday_to_monday():
assert sunday_to_monday(_SUNDAY) == _MONDAY
@pytest.mark.parametrize(
"day,expected", [(_SATURDAY, _FRIDAY), (_SUNDAY, _MONDAY), (_MONDAY, _MONDAY)]
)
def test_nearest_workday(day, expected):
assert nearest_workday(day) == expected
@pytest.mark.parametrize(
"day,expected", [(_SATURDAY, _MONDAY), (_SUNDAY, _MONDAY), (_MONDAY, _MONDAY)]
)
def test_weekend_to_monday(day, expected):
assert weekend_to_monday(day) == expected
@pytest.mark.parametrize(
"day,expected",
[
(_WEDNESDAY, _THURSDAY),
(_THURSDAY, _FRIDAY),
(_SATURDAY, _MONDAY),
(_SUNDAY, _MONDAY),
(_MONDAY, _TUESDAY),
(_TUESDAY, _NEXT_WEDNESDAY), # WED is same week as TUE
],
)
def test_next_workday(day, expected):
assert next_workday(day) == expected
@pytest.mark.parametrize(
"day,expected", [(_SATURDAY, _FRIDAY), (_SUNDAY, _FRIDAY), (_TUESDAY, _MONDAY)]
)
def test_previous_workday(day, expected):
assert previous_workday(day) == expected
@pytest.mark.parametrize(
"day,expected",
[
(_THURSDAY, _WEDNESDAY),
(_FRIDAY, _THURSDAY),
(_SATURDAY, _THURSDAY),
(_SUNDAY, _FRIDAY),
(_MONDAY, _FRIDAY), # last week Friday
(_TUESDAY, _MONDAY),
(_NEXT_WEDNESDAY, _TUESDAY), # WED is same week as TUE
],
)
def test_before_nearest_workday(day, expected):
assert before_nearest_workday(day) == expected
@pytest.mark.parametrize(
"day,expected", [(_SATURDAY, _MONDAY), (_SUNDAY, _TUESDAY), (_FRIDAY, _MONDAY)]
)
def test_after_nearest_workday(day, expected):
assert after_nearest_workday(day) == expected